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1. 发明申请

US20090126895A1 MOLTEN METAL FEED NOZZLE 审中-公开
公开(公告)号：US20090126895A1
公开(公告)日：2009-05-21
申请号：US11577882
申请日：2005-10-20
申请人： Hiroyuki Otsuka , Akihiko Kimatsuka , Shiro Osada , Hiroki Yoshizawa , Hisahiko Fukase , Rama Mahapatra , Peter Woodberry
发明人： Hiroyuki Otsuka , Akihiko Kimatsuka , Shiro Osada , Hiroki Yoshizawa , Hisahiko Fukase , Rama Mahapatra , Peter Woodberry
IPC分类号： B22D11/10 , B22D11/06
CPC分类号： B22D11/0642
摘要： A nozzle end is provided with an extension 11 which has a lower portion immersed in a molten metal pool and extends toward a side weir 2 such that a stagnation area disappears on a free liquid surface of molten metal.The extension 11 is in the form of a quadrangular pyramid lying sidelong and is converged to a point P1 extremely close to the side weir 2. According to this molten metal feed nozzle, a stagnation area on a free liquid surface of molten metal is displaced by the extension 11 contiguous with the nozzle end to suppress generation of an unwanted solidification shell. Thus, no unwanted solidification shell is pinched as foreign matter by solidification shells generated on outer peripheries of chilled rolls 1 for production of a strip and break of a strip derived from enlargement of nip between the rolls can be averted.
摘要翻译：喷嘴端部设置有延伸部11，该延伸部11具有浸没在熔融金属池中的下部，并朝向侧面堰2延伸，使得停滞区域在熔融金属的游离液体表面上消失。延伸部11呈四边形金字塔的形式，并且会聚到靠近侧堰2的点P1上。根据该熔融金属进料喷嘴，熔融金属的自由液面上的停滞区域被与喷嘴端相邻的延伸部11，以抑制不想要的固化壳的产生。因此，可以避免不想要的凝固壳被异物引起，因为在冷却辊1的外周产生的固化壳产生条带，并且由辊之间的辊隙的扩大引起的条带断裂。

2. 发明授权

US5836376A Method and apparatus for giving vibration to molten metal in twin roll continuous casting machine 失效
标题翻译：在双辊连铸机中对熔融金属产生振动的方法和装置
公开(公告)号：US5836376A
公开(公告)日：1998-11-17
申请号：US679569
申请日：1996-07-15
申请人： Kunio Matsui , Atsushi Hirata , Akihiko Kimatsuka
发明人： Kunio Matsui , Atsushi Hirata , Akihiko Kimatsuka
IPC分类号： B22D11/10 , B22D11/06 , B22D11/112 , B22D11/114 , B22D11/115 , B22D11/116 , B22D27/02
CPC分类号： B22D11/0622
摘要： To give vibration to molten metal in a melt pool to enhance solidification efficiency of the molten metal. Substantially directly above meniscus 14 between molten metal 5 in a melt pool 4 and each of rolls, an AC electromagnet 15 is arranged over the entire length of said meniscus 14 so that magnetic flux runs substantially perpendicular to a surface of the molten metal. Above the AC electromagnet 15, a DC electromagnet 16 is arranged over the entire length of the AC electromagnet 15 so that magnetic flux runs substantially perpendicular to the surface of the molten metal. Under application of DC magnetic field by means of the DC electromagnet 16, an AC magnetic field is applied near the meniscus 14 between the molten metal 5 in the melt pool 4 and each of the rolls 1 and 2. As a result, induction current is generated in the molten metal 5 and high frequency vibration is applied to the molten metal 5 by Lorentz's force due to interaction between the induction current and the DC magnetic field.
摘要翻译：使熔融池中的熔融金属振动，提高熔融金属的固化效率。在熔池4中的熔融金属5和每个辊之间的基本上直接在弯液面14上方，在所述弯月面14的整个长度上布置有交流电磁体15，使得磁通大致垂直于熔融金属的表面延伸。在交流电磁铁15的上方，直流电磁铁16布置在交流电磁铁15的整个长度上，使得磁通量基本垂直于熔融金属的表面延伸。在通过直流电磁铁16施加直流磁场的情况下，在熔池4中的熔融金属5与辊1和2之间的弯液面14附近施加交流磁场。因此，感应电流为在熔融金属5中产生，并且由于感应电流和DC磁场之间的相互作用，通过洛伦兹力将高频振动施加到熔融金属5。

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